A mother who was driving with her 3-year-old child in the rear seat was texting before she lost control of her vehicle, flipping into a ditch.
In another crash the following day a man is also believed to have been texting when he ploughed into the rear of a car parked on the side of the road.
Waikato Police are urging motorists ensure they maintain their situational awareness after two serious crashes over recent days as a result of drivers being distracted.
Sergeant Geoff Blow of the Hamilton Road Safety Team said the first crash happened on a rural road east of the city on Monday shortly before 1pm.
"A mother was driving with her 3-year-old child along a 100km/h stretch of Holland Rd, about 1km west of Marshmeadow Rd, when witnesses describe her car as veering first to the right, skid heavily to the left and then crash into a ditch before the car flipped."